I got the app and watched their YouTube - the few comments on the YouTube were that it was a scam and they had all paid but not got the itinerary. Do you use the service including pay or just go so far and screen shot? Cheers
Arrived a couple of days ago, picked up some duty free gave the immigration officer my passport - he stamped it and then stamped a date 45 days later, gave me my passport and off we went. Really that easy